Defined Benefit Pension and Other Postretirement Plans (Details Textual) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Pension and Other Postretirement Plans (Textual) [Abstract]
Net cost to sponsor unfunded and non-qualified supplemental executive retirement plans	$ 0.8	$ 0.6	$ 2.4	$ 2.1
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Contribution made to Pension Plan			13.4	25.4
Expected contribution to pensions plans during remainder of fiscal year	2.5		2.5
Supplemental Employee Retirement Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension and Other Postretirement Benefit Contributions			20.6
Portion used to fund company established trusts [Member] | Supplemental Employee Retirement Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Pension and Other Postretirement Benefit Contributions			$ 20.0